This 30-Piece Kit includes a variety of pins that fit the upper jaw plates of every GRS® Block, 4 one-half Thermo-Loc sticks, 8 small pins, 4 flat square pins, 2 rectangular inset-curve pins, 4 thick round inset pins, 8 rubber-coated pins, and 2 leather-faced ring clamp pins in molded base
To be used with a GRS Vise 
Retail: $158