[white steel ball] universal wheel (three beads)(【白色钢珠款】万向轮（三珠）) [black steel ball style] universal wheel (three beads)(【黑色钢珠款】万向轮（三珠）) [white plastic beads] universal wheel (three beads)(【白色胶珠款】万向轮（三珠）) [black plastic beads] universal wheel (three beads)(【黑色胶珠款】万向轮（三珠）) steel ball drill surface three beads (white) with screws(钢珠钻面三珠（白色）送螺丝) steel ball drill surface three beads (black) with screws(钢珠钻面三珠（黑色）送螺丝) steel ball drill surface three beads (nylon white) with screws(钢珠钻面三珠（尼龙白）送螺丝) [white steel ball type] universal wheel (double ball type)(【白色钢珠款】万向轮（双珠款）) [black steel ball] universal wheel (double ball)(【黑色钢珠款】万向轮（双珠）) [black steel ball style] round perforated universal wheel(【黑色钢珠款】圆形打孔万向轮) [white steel ball type] universal wheel arc (3 beads) with screw holes(【白色钢珠款】万向轮圆弧（3珠）带螺丝孔)

four pack(四个装)