A quick test piece that can be used to compare different materials and their properties, specifically durability and flexibility.

Features:

1. 5 tabs of different thickness (0.2mm, 0.4mm, 0.6mm, 0.8mm, 1.0mm)
2. Perforations of those thicknesses to test tearaway strength
3. Wavy sections in 1.0mm, 1.5mm, 2.0mm to test flexibility and curvature
4. Thin section (0.6mm) to test living-hinge feature
5. Springs of two different stiffness
6. Carabiner clip to test cantilever bending, and to clip on a ring for safe-keeping