【Function】: Stop locks are designed to protect your displayed products on hooks. The “STOP LOCK” tag makes your store more secure 【Applicability】: Suitable for single hook, double hook, and hook with the price tag. A stop lock can be installed on a security display hook whose diameter is 6mm. 【Easy to install】: No tools are required to install the peg hook locks. It is easy to use, good quality, and durable. 【Package included】: 100 pcs pegboard hook locks. The magnetic tool is INCLUDED in the pack. 【Quality service】: we are the factory source and have more colors and styles, if you have any questions, you can always contact me, we support no reason to return or exchange the goods.