Swix Rectangular Fine Steel Handbrush Ecological Target K1 Base is a

Target K1 Base is a used as a binder for softer waxes or as a pure blue klister

same as the Tristar CL/Carbonfibre CL

Guru Extreme 39 Hard is the rougher and tougher version of Extreme 39

Care: The structure roller is precision-machined stainless steel—handle with care to protect the fine-groove pattern from damage

They are used to break up hard waxes that were applied with an iron

Swix Rectangular Fine Steel Handbrush Ecological Target K1 Base is aA high quality steel brush with ultrafine bristles! Great for cleaning deep into structure and refreshing the ski base. Use for cleaning, post coarser steel brush, or as final brush for very hard waxes!