Grieshaber Tongs Skull Traction Gardner-Wells Design 6.25inch Special features: 6.250 in.max opening;half-circle bar;spring-loaded point on at least one end of bar for insertion into skull for traction;closed s-shaped chain for attachment of weights;design designation:gardner-wells Iii part name assigned by controlling agency: tongs skull traction gardner-wells design 6.25" max opening crs