Features: Designed to guard your billiard cue tip from moisture and damage, ensuring great performances. Make from plastic, these pool cue tip protectors provide a comnfortable fit without scratching or damaging the cue tip. This Pool Cue Head Cover can easily installed on the tip of your billiard cue. Easy to Use: Quick installation on billiard cues for easily protections. Package Includes: 5pcs protectors, suitable for multiple cues or replacements. Specifications: Component: Plastic Inner diameter option: 11.5mm(0.45inch)/13mm(0.51inch)/14mm(0.55inch)/9.5mm(0.37inch)/10mm(0.39inch) Length: about 4.70cm/1.85inch Package Includes: 5Pcs Pool Cue Tip Protector note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.