Enhanced Performance:High finish and smoother airflow stable properties and long service life. Wide Compatibility:Fits various laser cutting heads, including Precitec-KTXB/KTX/Raytools BT240/BT220/BM114/BM115/BS06K/BS12K/WSX/Tony. Raytools Ceramic Ring|Raytools D32|High-Quality Material:Crafted from premium ceramics and alloys for consistent thermal expansion, preventing explosions. Precision Fit:Available in various sizes and thread types, ensuring a for your specific laser cutting head. Optimized Design:Designed to stabilize signals, reduce sensor damage, and offer effective insulation. Color: As shown Material: Ceramics Package Contents: 1*Raytools Ceramic Nozzle Holder 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.