Sew In Button Carrier gets sewn directly to back of curtain panel and eliminates the need for hooks. The crosshatch pattern makes sewing through carrier easy. Commonly used in RV and marine industry. Compatible with RECMAR 32124, 42124, and 52124 Curtain Tracks. Dimensions: 0.44" Wide x 1" Tall. Head Diameter: 0.44". Neck Diameter: 0.19"