The Bonza Anodised Screw Slip-In Cone & Collar Stem Kit designed for Bonza-sized fittings. This kit includes an anodised stem ensuring durability with a screw-in cone, made from high-quality brass. Complete with a matching collar, this kit offers a seamless and stylish integration for bongs that fit Bonza size.

Available in 8cm, 10cm, 12cm, 14cm, & 17cm