This tools set is useful for locksmith and lock selector to practice unlocking with a transparent lock because they can see clearly that how the pins work when a key is inserted. 

Features:
Transparent Padlock Design: allows you to know the locking mechanism.
Superior Quality: high quality, anti-corrosion for long-term use.
Crystal Cutaway Structure: smooth working condition and durable for repetitive practice.
3PCS Keyed Padlocks: give you the option of practicing on different types of padlocks.
Lightweight and Portable Size: easy to handle and practice anywhere at any time.
The unlocking tool is made of high quality stainless steel, not easy to bend and break.

Specifications:
Color: Transparent Color
Material: Crystal + Stainless Steel
Padlock Size: Approx. 7.7 * 4.9 * 2cm / 3.03 * 1.93 * 0.79in
Blade Lock Size: Approx. 7.4 * 4.8 * 2cm / 2.91 * 1.89 * 0.79in
Cylinder Lock Size: Approx. 6.4 * 3.3 * 2cm / 2.52 * 1.3 * 0.79in
Package Size: Approx. 20 * 10.8 * 3.5cm / 7.87 * 4.25 * 1.38in
Package Weight: Approx. 391g / 13.79oz

Package Lists:
1 * Padlock
1 * Blade Lock
1 * Cylinder Lock