Feature: 1. P-style for use on all steel wheels up to 17in passenger car and light trucks. 2. Prevent the dynamic unbalance of wheels, avoid wheel shaking and steering wheel vibration during driving. 3. Make the car safe from trembling at high speed, reduce driver fatigue and accident rate. 4. Not easy to overshoot, lengthen the tyre life, and makes the suspension parts not easily damaged. 5. Package of 50pcs, which can completely meet your needs, practical to use. Specification: Condition: 100% Brand New Item Type: Clip-On Wheel Weight Material: Aluminum Alloy Color: As picture shown Optional Type: With Wheel Balance Pliers, Without Wheel Balance Pliers Balance Blocks: Single Weight: Approx. 40g ± 2g/1.4 ± 0.07oz Quantity: 50pcs Weight Per Bag: Approx. 2000 ± 20g/70.5 ± 0.7oz Balance Pliers Length: Approx. 24cm/9.4in Applicable Car Wheel: Use on all Alloy Wheel for Passenger Car & Light Truck Instruction: 1. The wheel of a car is a whole composed of tires and wheels. However, due to manufacturing reasons, the mass distribution of each part of this whole cannot be very uniform. When a car wheel rotates at a high speed, it will form a dynamic imbalance state, resulting in the phenomenons of vehicle wheel shaking and steering wheel vibration during driving. Dynamic balance refers to the asymmetric weight distribution generated by the force of the tire when it rotates, usually at a higher speed. In the tire factory, a balancing machine installed on the tires and wheels tests the wheels. The assembly is accelerated to 300 RPM or higher, and the force imbalance is measured with the tire rotation sensor. 2. For the hook type balance weight, the unreasonable fit clearance is also the cause of the loss during driving.. Package List: 50 x Wheel Balance Blocks Note: Professional installation is strongly recommended! ! ! !