These Maxum OEM gas springs are custom charged and are intended for large quantity purchases. Custom charged gas springs cannot be returned. It is the responsibility of the customer to determine all required dimensions. * Mount gas springs rod down. Provide physical stops to limit the spring's extremes. Do not scratch, dent, chip, bend or paint the rod. Do not puncture or incinerate. User is responsible for determining whether the Maxum Hardware product is fit for a particular purpose and suitable for user' application. Except where prohibited by law, Maxum Hardware and seller will not be liable for any loss or damage arising from the Maxum Hardware product, whether direct, indirect, special, incidental or consequential, regardless of the theory asserted, including warranty, contract, negligence or strict liability.