1-7/8" L x 7/8" W x 3/8" T. Lifts 5 lbs.; lift up to 40 lbs using pole pieces.
Poles spread over the largest sides. The holding force is increased by a relocation of the poles using steel plates that move the north and south poles closer together. Pole pieces have 1/4" holes at each end for assembly. 2 magnets; 4 pole pieces.