The Bronson G2 Bearing is a bearing design specifically for skateboarding by Bronson Speed Co. It's the "2nd Generation" of skate bearings that Bronson have produced. Sold in a pack of eight, they come pre-lubricated for a smooth, fast ride. Bronson G2's feature a labyrinth shield on both sides of the bearing. Given that they are a standard skateboard size bearing (8mm core, 22mm outer diameter, and 7mm width), they are technically a 608 2RU bearing. Each set of Bronson Speed Co G2 Bearings contains eight bearings, enough for four wheels. Bronson G2 bearings come packaged with a set of bearing spacers and a sticker. It's worth checking out the Bronson G3, which is the updated "3rd Generation" of Bronson Bearings, and has a few nice extra features. Bearing Bronson G2 Bearings Number of balls 7 Ball Material Chrome Steel Race Material Chrome Steel Cage Material Nylon ABEC Rating N/A Shield Material Rubber Labyrinth (RU) Number of Shields 2 Includes Spacers Yes Made in China