Features: 1. New materials, safe and environmentally friendly, have peace of mind 2. The flexible connector can be connected to most syringes 3. Cold resistant, high temperature resistant, corrosion resistant, free to bend 4. An indispensable tool to reduce insemination time, reduce sperm quantity and increase the rate of . Color: Blue + Yellow Material: PVC Size: Length: 30cm Package Contents: 50 * deferens Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.