Construction: Crafted from premium rubber and copper, these rollers boast high durability and performance. Their robust build guarantees a long service life and resistance to wear, providing reliable and consistent results over extensive usage. Maintenance Tips: Regular cleaning is crucial for maintaining the efficiency of these rollers. They tend to accumulate adhesive from cutting materials, which can affect performance. Cleaning them frequently ensures they continue to provide precise and clean cuts. Optimal Replacement Recommendation: For the best results and to maintain even pressure across your device, it is recommended to replace pinch rollers in pairs. This ensures balanced operation and sustained quality in your projects. When paper deviation becomes more serious and cleaning the rollers no longer resolves the issue, it is time to consider replacing the rollers. When replacing the pressure rollers, it is advised to replace multiple units at once, as the friction coefficients of old and new rollers may differ. Mixing old and new rollers may result in paper deviation. Do not adjust roller pressure随意 (this phrase has been removed). Without a pressure gauge, improper adjustment may lead to uneven pressure and machine misalignment. Color: As Shown Material: Rubber + Metal Size: 4x11x16mm Package Contents: 6 * Engraving machine pressure wheels Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.