High Density liners (or trash bags) are designed for 'soft trash' with no sharp objects. High density liners will hold a lot of weight but will rip open if punctured. High Density Liners are generally clear but can come in black. They are popular for the reduced cost and are most often used in trash cans under desk and in kitchens. High density liners are measured in microns or 'mics'. Delivery is available and we offer free delivery for orders $150.00 or more. All liners are on rolls.