This high fashion, stylish design, breathable ball gag is a high-end accessory at a low-end price. Accessible to all consumers, beginner to advanced. Think of it as a blindfold for your mouth. - Great for beginners or advanced users - Nickel free metal Dimensions: - 1.75'' (44.7mm) diameter ball and a one-size-fits-most fabric strap - Material: Nickel-Free Metal / ABS Plastic / Polyurethane