HIGH QUALITY MATERIAL: Made of rubber, durable in use, and avoid scratch your portafilter. PERFECT SIZE: 12 X 9.9 X 12.5 cm (L*W*H). It's perfect for most espresso machines. With enough capacity, it could prevent coffee grounds from splashing all around. MULTIPURPOSE: It could be used in coffee shop, western restaurant, bar, home kitchen etc. EASY TO CLEAN: You can clean it by hand, dishwasher safe, save your time on the washing the coffee tool. 100% MONEY BACK GURANTEE: If DOA received or unfourtunately your Coffee Knock Box did not work smoothly, kindly contact us for exchange, return or refund. YOUR FEEDBACK WILL BE APPRECIATED. Box included: １Ｘ Coffee Knock Box
eBay