Features: Specially designed for efficient coffee machine maintenance, this tool and accessory set ensures your equipment remain in top condition with silicone rings providing perfect seals. Featuring multiple sizes of heat resistant silicone rings and ergonomically designed drill bits and screwdrivers, this set is suitable for various coffee machine brands and models. Suitable for coffee enthusiasts who wishing to maintain their machines, professional repair technicians seeking reliable tool, and users interested in exploring coffee machine repairs. Perfect for home coffee machine upkeep, commercial coffee shop repairs, and personal projects, ensuring optimal performances and quick problem resolution. This set not only enhances coffee machine maintenance but also serves as a valuable resource for maintaining other household appliances, making it essential addition to any toolkit. Specifications: Texture: Metal+Silicone Applicable Model: For (13531-13422-13452-13681-13739-15006-15068); D6-D600 (15216); (13187-13204); (13466-13421-13382-13500-13572) Large Rings Inner Diameter: Approx. 1.42inch(3.60cm) Large Rings Outer Diameter: Approx. 1.69inch(4.30cm) Package Includes: 1 Set Silicone Rings note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.