It shows that the artificial insemination tube is made of PVC plastic, safe to use, environmentally friendly and durable. Perfect dog artificial insemination tool, very convenient and practical. Suitable for personal family or pet shop. Features - colors: various colors- Material: PVC Plastic Size: about 29.00X0.80X0.80cm/11.40X0.31X0.31 inch- Note: This set includes 10 tubes- The breeding catheter is not too hard, which will not cause discomfort in insertion and will not hinder the free flow of water- It is disposable and can provide maximum protection for pets during artificial insemination- The artificial insemination catheter is made of PVC plastic. It is durable, safe, smooth and environmentally friendly- It is suitable for professionals and learners to help complete the artificial insemination of pets- It provides practical pet supplies for pet owners and pet shop owners, making artificial insemination easier.