Pink anti-static 18 MIL accordion wall poly inserts. Fits a 55 gal drum. Pleated side walls are flexible to adjust to varying heights. Our rigid drum & pail liners meet FDA specifications and are BPA free. Also, made with a pink anti-static additive to help prevent static discharges from harming your product. 15 per case, price be each, must order in multiplies of 15.