This is a package of eighteen 5mm Double Blocks from Latina. FEATURES: Constructed of wood and used in the rigging of model ships INCLUDES: Eighteen 5mm Double Blocks from Latina REQUIRES: Rigging thread SPECS: Height: 0.12" (3.2mm) Length: 0.20" (5mm) Width: 0.098" (2.5mm) COMMENTS: Also available in the following sizes; 3mm LATB8519, 4mm LATB8520, 7mm LATB8523. jxs 5/15/06 ir/jxs