Suitable for motor type: 25mm gear motor; Mounting hole diameter: Large: 10mm / 0.4 "Small: 3.5mm / 0.14" Size: 33 × 26 × 33mm / 1.3 "× 1" × 1.3 "(L * W * H) Color: Black Material: aluminum, copper; color: black, gold Weight: 35g;
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