I.XXI Knock Box with Nonslip Base, Blue Fraction Packs The lithium battery lasts 30-40

The lithium battery lasts 30-40 hours

or 26 pounds of ice (only)

and calibrated before it is shipped out

Screw the top section firmly to the base

I.XXI Knock Box with Nonslip Base, Blue Fraction Packs The lithium battery lasts 30-40This practical little gadget makes clearing out your espresso machine's portafilter a breeze. Just whack your portafilter against the soft knock bar to toss out a used coffee puck into the bowl, for a tidier and easier way to discard grounds. With a space saving compact size, this knock box is ideal for any home coffee bar. More Info Dimensions: 13. 5 cm W x 12. 3 cm H (15 cm W at top) Construction: Steel #45 Soft non slip base and soft knock bar to