Biodegradable

no worries -- It's not that hard

the space between the boot and calf disappears

just how you want it

Swix Gummy Stone - Hard - Red - T0994 SKI BOOTS BiodegradableThe Hard Gummy Stone from Swix is a nice option for cleaning up the edges on your skis or snowboard. This hard edge deburrer can be used after you are done filing your edges to remove some of those micro burrs on your ski edges. You can also use this stone for detuning the tips and tails of your skis. This is a great tool for any skier or snowboarder to keep around. Gummy stone for light to medium edge clean up Hard Red 2. 5in x 0. 75in x 0. 75in (6.