XRAY Stainless Steel Weight For Narrow Battery Pack 35g Specially-designed 35g stainless steel weight for placement under slim battery pack to add weight as low as possible. Helps to improve the balance of the car and makes the car easier to drive. Dimensions: 135x33x1mm. Fits standard 1/10 on-road cars. A 'must have' option part. Dimensions: 135mm x 33mm x 1mm