Product Features 1.Semi-automatic lateral swinging arm and two-sides helper to change tyres; 2.The hexangular shaft is made of S41mm steel material, not easy to distort, ensure the operation of low-profile and stiff tyre more safety; 3.The round working turn plate has synchronous centering and fine adjustment function which make the operation of tyre changer more easy and smooth. 4.The clamp jaw is made of special material , strong and durable .; 5.The universal switch is 40A with a pure silver touching point, it can bear great load with a long using life ; 6.Equipped with good quality air filter & lubricator ; 7.The tools touching rim directly like changing working head,jaws,crowbar and spade are all equipped with protector,these protectors ensure no hurt to the rim; 8.It has good personal presentation,thick steel plate and super strong rigidness.