Sweeper brush head with bristle

Engineered for the ChalkBlaster, the sweeper replacement brush head has built-in air channels that uses the coandă effect to redirect air around the bristles, delivering maximum chalk-blasting power.

With a removable bristle insert, you can flip it 180° to extend
its lifespan or pop it out entirely and swap in a new one when
worn. Use a screwdriver or any pointed tool as a lever to release the insert.

Natural boar hair is biodegradable and naturally softer, making it the recommended choice for outdoor climbing, especially on softer rock types. Synthetic nylon is stiffer and more durable, making it better suited for indoor climbing or for tackling heavy chalk buildup.

Each insert is handcrafted individually and epoxy-glued to ensure consistent, high-density bristles across the full surface.