【DURABLE】- Made of high quality material, durable and sturdy to use. 【GLASS CUTTER】- Adjustable glass circle cutter, round knob, suction cup holds center while the cutter wheel scribes circles. 【CLEAR-CUT SCALES】- The lever has clear-cut scales which make easy to read. 【EASY TO USE】- Compasses style, comes with round knob handle that fits your hand. 【APPLY TO】- Perfect for both hobbyists and professional glass cutters.