▼ This listing (4 pcs of each size): Red 1/8" (3.2mm), Orange 5/32" (4mm), Yellow 13/64" (5.2mm), Green 1/4" (6.4mm), Blue 5/16" (8mm) spacing for deck gaps.
▼ Other options: Red 1/8", Orange 5/32", Yellow 13/64", Green 1/4", Blue 5/16" or MIX Pack (4 pcs of each size).
▼ Don't know what size to fit 54% of people choose 1/4", PayandPack recommends the MIX Pack (4 pcs of each size) for starters.