High Quality: The whole holder case is made of high-quality silicone, it will not stick to the skin, the needle with rotation is made of stainless steel, which is sweat and rust-proof. This case is lightweight, stylish, and durable (but not suitable for children under 3 years old) Wide Application: We recommend using it on jeans, coats, trousers, skirts, shirts, and other clothes, and it can also be fixed on backpacks and school bags. Track your family and pets in crowded parks, airports, shopping malls, and even near your home, safely lock and for your loved ones New Design: If you just get tired of carrying Tag holder accessories, such as bracelets, watches, wristbands, necklaces, key chains, etc., you can try this new design GPS tracker, This is a brand new holder specially designed for clothes Easy to Use: This case can be fastened under clothes and from sight that the tracker is not fixed in sight, so children or the elderly who wear this pin/child tracking device are less likely to take it off, which prevents a tracking device was accidentally removed Easy to Install: Designed with a "safety pin", which can be firmly fixed on your child's, or pet's clothing or bag. The design of the safety pin is more reliable and will not easily fall off and dislocate Specifications: Material: Silicone Size: 2.18 x 1.77 x 0.47" Weight: 14.7g