The B2756 is a weighted Solder Iron Tip Holder. This Tip Holder is specifically designed for the Hakko T15 and T16 Solder Iron Tips, but will hold any Solder Tip with a 1/4" diameter or smaller. The B2756 holder has 12 individual tip slots and a center slot 1-1/8" wide. The center slot is perfect for your over sized solder tips or a collection of a few. The B2756 is constructed from a metal composite, which allows you to store warm Solder Tips just after use.