Features: 1.Made of high quality stainless steel, therefore these snake sexing probe have smooth surface and will not rust. 2.Due to careful selection of materials, these reptile snake sexing probes are safe, non toxic and anti allergic. 3.All snake sexing probes in the suit are designed with round heads, so the smooth surface will not harm the snake. 4.The set contains five snake sexing probes of different sizes, which can cope with sex detection of snakes of various sizes. 5.This kit is equipped with a storage box, which is convenient for you to store fine needles to avoid loss and easy to carry. Specification: Item Type: Snake Probe Kit Material: Stainless Steel Applicable Range: XS Scope of application: Approx. 50cm/1.6ft Snakes S Scope of application: Approx. 50-100cm/1.6-3.3ft Snakes M Scope of application: Approx. 100-180cm/3.3ft-5.9ft Snakes L Scope of application: Approx. 180-300cm/5.9-9.8ft Snakes XL Scope of application: Approx. 300-550cm/9.8-18.0ft Snakes PackageList: 2 x XS Probe 1 x S Probe 1 x M Probe 1 x L Probe 1 x XL Probe 1 x Manual Note Please read the instructions carefully before use; curved probes cannot be used; please check whether the probe surface is clean and smooth before use; clean and keep dry after use; please place the probes away from children.