Sizes and dimensions:
2 ½ inches (63mm) long by 1 inch (25mm) wide by ⅜ inch (10mm) thick.
Thickness measurement does not include the mouthpiece for the whistle.
Slots in the buckle for cord, webbing or straps measure ¾ inch (19mm) wide
Package Content: 5 pcs
Normally it takes about 7-15 days to USA. European and Canada will need about 15-30 days, South America and Russia will be longer for shipping time.