BALL CASTERS (TAMIYA #70144) 2 PCS, Tamiyas steel-ball caster is a good way to give a third wheel to a small robot powered by a differential drive. The kit comes with enough parts to make two casters, either 25 mm or 35 mm in height. keterangan lebih lanjut dapat di lihat pada katalog KlinikRobot dengan memasukkan kode barang atau tauran berikut ini : =144 amp;page=shop.product_details amp;flypage= amp;product_id=20 amp;category_id=27