12oz (340gm) BAG of 4mm dia. PREMIUM ABC TYRE BALANCING BEADS 14oz Alltyre Balancing Ceramics recommends that Alltyre Balancing Ceramics recommends that the installation of ABC Beads be carried out by a qualified Tyre Fitter Technician using the appropriate PPE (Personal Protection Equipment) T&T Wheel & Tyre Balancing Beads are high density ultra smooth long lasting ceramic balls placed inside a tyre when fitted light trucks and 4x4 vehicles that operate both on and off road ABC Beads last the life of the tyre and are easily installed at a fraction of the cost of unsightly lead weights mounted on the outside of the tyre rim which can damage custom wheels and also work themselves free