Check the listing for details. Flyshop 12 PCS Single-Sized Rubber Cable Seal Ring Grommet Gasket Hole Plugs. Color: Black, Condition: New. Listed at 16.99 USD. Product Feature: Material: Synthetic rubber Shape: Single-Sized Quantity: 12 PCS Hole Size: 15mm /17mm /20mm /22mm /25mm /27mm /30mm /32mm /35mm /40mm /45mm /50mm /70mm Note: Please measure the HOLE SIZE of your need carefully to avoid size error. Description: Easy to use: Cut the hole along the cross with a knife, and the cable can pass through the hole. Brand new with high quality: Made of heavy-duty synthetic rubber material. Durable quality: Flexibility, anti-aging, wear-resistance, heat-resistance, dust-proof, insulated, flame-retardant. Provide excellent protection: Protect wire and cable from sharp metal edges. Wide Application: Suitable for firewall, pump, electrical appliance, chemical pipe, water pipe, etc. Contact us: If you have any questions, please feel free to contact us, we will get back to you ASAP.