... blocking; 3.crown tips,8mm diametre connecting tip; 4.offer OEM. descriptionTransparent moulded Yankauer suction handle attached with non-toxic, ... flat end,this is the crown/round one Features This suction connecting tube is designed with hex-arris, avoiding blocking the ... tube duo to high vacuumflat tip, vented.available with connecting tube Sterile, individual packagmore sizes are available ,you are ...