Check the listing for details. Stainless-Steel-ABS-15in1-Multi-functional-Key-Pick-Tool-Set-Transparent-Design. Condition: New. Listed at 14.98 USD. Features: 1.Durable and Weatherproof: Made of superior iron material, this practice padlock set is waterproof and rustproof, suitable for various harsh environments. 2.Transparent Design: Improve Unlocking Skills. The practice padlock set features a transparent design that makes the key and internal mechanism clearly visible.This clear visibility allows users to quickly understand the principles of unlocking and improve their skills with ease. 3.Anti-Theft Features: Your practice padlock set has a safe design that resists prying, drilling and vibration, making it hard for anyone to tamper with. .