high cost performance 40-50kg spring balancer

High Quality Spring Balancer 0.6-1.2kg; 1.2-2.0kg, 3.0-5.0kg$3.04-$3.20/ Piece10 Pieces(Min. Order)$3.76/Piece (Duty Incl.)Shenzhen Willdone Technology Co., Ltd.Get PriceSpring retractable tool balancer electric screwdriver spring balancer 1.5-3.0KG safety tool balancers$2.88-$3.66/ Piece2 Pieces(Min. Order)$9.17/Piece Shenzhen Bodunbaili Electronic Co.,…