It is constructed from 100 ppi open-cell polyurethane foam and is the ideal swab to use to effectively in eliminating contamination on surfaces and hard to reach areas. Its cleanroom laundered foam head possesses high solvent capacity.
Patented product developed by WALKMAN. They are composed of ring and hooks. The hook tips can hold the edge of patella and the end could be split for fixation. Maximum 12 hooks can be assembled.