Compatible with Jura Capresso Impressa C-D-E-F-S-X-ENA-GIGA coffee machines. Special bit key for removing screws on the back wall of coffee machines. Refer to product image for seal installation position. High-temperature and low-temperature resistant. Sealing element made of silicone material, wear-resistant, corrosion-resistant, and easy to use. Color: As shown Material: Metal + Silicone Appearance may vary due to different product batches; this does not affect functionality. Package Contents: 1 x Repair Tool 5 x Big Red O-Rings 10 x Small Red O-Rings 10 x Small Black O-Rings Only the items listed are included; other products are not included. Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement error allowance is +/- 1-3 cm.