Ribelle Lab Drawer Knock Box

This knock box by Ribelle features a barless design. Instead of a knock bar, the small protrusion is used to precisely eject the puck from your portafilter, resulting in a quieter disposal of the coffee grounds. 

• Material: BPA free plastic
• Dimensions:
• Base 140mm, Opening 160mm 
• Rear height 170mm, front height 100mm
• Dishwasher safe but hand washing recommended