1、The sleeve is made of environmental friendly material, safe and durable 2、The swivel is made of premium copper material, anti-rust and durable 3、The sleeve can prevent fishing line from twining for better fishing 4、The swivel is rotatable and high strength, offers perfect performance for connecting hook 5、Lightweight and portable, 20 beads and 20 swivels are enough for long time use. Useful accessory for fishing lovers Description: This sleeve is made with environmental friendly material, which is non-toxic, harmless. Unique design of tube in the middle and sleeves in two ends ensures that the swivel is trapped between the sleeves when casting. The swivel is sturdy and durable, can rotate freely. 40pcs a pack, perfect for fishing. Features: 1. The sleeve is made of environmental friendly material, safe and durable. 2. The swivel is made of premium copper material, anti-rust and durable. 3. The sleeve can prevent fishing line from twining for better fishing. 4. The swivel is rotatable and high strength, offers perfect performance for connecting hook. 5. Lightweight and portable, 20 beads and 20 swivels are enough for long time use. Useful accessory for fishing lovers. Specifications: Material: PET + Copper Color: Shown as picture Total Length: Approx. 1.5 cm / 0.59inch Sleeve Head Diameter: Approx. 0.6 cm / 0.2inch Sleeve End Outer Diameter: Approx. 0.5 cm / 0.19 inch Sleeve End Inner Diameter: Approx. 0.3 cm / 0.11 inch Swivel Type: UK8# Weight: Approx. 13 g Package List: 20 * Fishing Sleeves 20 * Fishing Swivels