Preparatory Needle
Product Code : SCL-CL-11924
Preparatory Needle (SKU SCL-CL-11924), also called a dissecting needle or teasing needle, is a 14 cm straight metal needle for manipulating, separating and positioning delicate specimens. It suits dissections and microscope slide preparation in school biology and college botany and zoology practicals. Science Lab Supplies quotes and dispatches the needle from Ambala, India, for schools, colleges, training institutes, tender contractors and distributors.
Specifications
Each detail of the 14 cm teasing needle is given in the table below. In short, it is a long, slender, straight metal needle with a sharp, pointed tip that untangles minute tissues and probes small structures under a microscope, and its shaft gives control when pressing a coverslip gently onto a slide.
| Specification | Value |
|---|---|
| SKU | SCL-CL-11924 |
| Material | Metal |
| Length | 14 cm |
| Type | Straight dissecting needle |
| Shaft | Long and slender |
| Tip | Sharp, pointed |
| Specimen work | Manipulating, separating and positioning delicate biological specimens |
| Microscopy work | Untangling minute tissues and probing small structures |
| Slide mounting | Pressing and guiding coverslips to tease out trapped air bubbles |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Preparatory Needle
The needle can tease apart fine tissues, spread a specimen evenly in a drop of stain or water and lower a coverslip onto a slide at an angle so that trapped air bubbles are pushed out. Clear, bubble-free mounts make microscope observation much easier at school and college level.
- Class 9–10 biology: preparing onion peel and cheek cell slides for viewing on the Digital Microscope.
- Class 11–12 biology: separating floral parts and teasing out tissues after opening them with a Scalpel.
- B.Sc. botany and zoology practicals: spreading specimens for temporary mounts.
- Lowering coverslips to remove air bubbles before observation.
The tip is sharp, so store the needle point-down or capped and use it under supervision.
Standard Scope of Supply
The Preparatory Needle is supplied as a single 14 cm metal needle as described above. Pack quantities appear on the quotation, and slides, cover glasses or forceps can be added if you are equipping complete microscope benches for a biology class.
Packing, MOQ and Lead Time
Needles can be quoted for every microscope bench or dissection group. The quotation you request states packing, delivery time and price for that number, and slides, cover glasses or other school chemistry lab equipment in India can be included in the same enquiry.
Science Lab Supplies is able to ship to buyers in Nigeria, Kenya, Ghana, Ethiopia, Tanzania and Uganda as a registered exporter with an Importer-Exporter Code. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). Count your microscope benches and send that figure through the contact page, or load the needles into the enquiry cart with slides and covers; institutional tenders are described on the lab tender page.
Frequently Asked Questions
What is a preparatory needle used for?
It can manipulate, separate and position delicate specimens during dissection and slide preparation, and lower coverslips so that air bubbles are pushed out for a clear view.
How long is the needle?
It is 14 cm long, a straight metal needle with a sharp, pointed tip that gives good control when working under a microscope or a x10 Magnifier.
Who supplies the Preparatory Needle?
The needle is offered by Science Lab Supplies from Ambala, India, to schools, colleges and contractors, and forceps, scalpels and slides can be priced with it on one quotation.
Is it the same as a dissecting needle?
Yes. The preparatory needle is a straight dissecting or teasing needle for handling fine specimens and preparing slides, with a sharp point for separating tissues and a slender shaft for guiding coverslips.
Related Slide Preparation and Dissection Items
Slide preparation needs a few simple tools used together. These items from the Chemistry Lab, Dissecting and Surgical and Biology ranges cover probing, mounting, handling and viewing specimens, so a biology lab can equip its microscope benches and request everything on one quotation.
- Needle with Handle — straight, bent or arrow-head needles of 110–125 mm with hardwood or plastic handles.
- Dissecting Awl — 50 mm stainless steel spike in a wooden handle.
- Entomological Needles — chemical-resistant metal needles with coloured enamel.
- Forceps — fluted stainless steel handles and serrated tips for fragile items.
- Glass Microscope Slides — clear glass mounting platforms, boxed in 150s.
- Cover Glasses — thin 24 x 24 mm sheets, 150 pieces per box.
- Set of Microscope Slides — labelled zoology, botany and histology sets of 15 slides each.
- Compound Biological Microscope — metal body with wide-field 10X and 25X eyepieces and top and bottom LEDs.
See the full Chemistry Lab range, the Dissecting and Surgical range, or browse all school lab equipment.
Last updated: 9 October 2026
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