[Heavy Duty]: Cutter head is made of 45# steel with chrome polished; The cutting body is made of plastic and steel with gold polished; The wheel is made of tungsten carbide [Unique Grip Design]: This grip glass cutter is designed to be ergonomic, reducing wrist fatigue and easy to use. letting you score glass with little effort and it gives you cleaner cuts. [Refined Oil Feed System]: glass cutter, which features automatic oil dispensing system keep the wheel lurbricated every time you cutting [perfect for cutting glass]Including Cutting Mirrors, Windows, Glass Shelves, Stained Glass, and More!Features automatic oil dispensing system keep the wheel lurbricated everytime you cutting. Some accessories are randomly styled, don't accept the specified styled. Material: plastic colour: As shown Package Contents: 1 x grip oil feed glass cutter 4 x replacing cutter heads 2 x oil dropper 1 x scriber 1 x screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.