Package includes: A total of 12 shower door rollers with 12 screws. Material: The shower door roller is made of plastic and is durable. Size: The shower door roller measures 27 mm.; Design: Replacement rollers with screws for sliding doors, you can repair them at home. Purpose: Suitable for sliding doors in shower rooms, shower rooms and kitchens etc. Specification: Material: Shower Door Roller: Plastic Screws: Metal Size: Shower Door Roller: 27mm Screws4 x 10mm Product Features: Replacement rollers with screws for sliding doors, you can repair them at home. Box contents: 12 x shower door roller 12 screws.