Item features:1.Usages: for Festival decoration， Happy birthday， Wedding decoration， Party decoration， Advertising， Celebration， Anniversary， Start business， and so on.2. Material: PVC Plastic.3. Size: 30cm poles 4pcs: 30 cm/pcs * 4pcs + 3pcs connection pipes. 40cm poles 4pcs: 40 cm/pcs * 4pcs + 3pcs connection pipes. Diameter (outer): 2 cm. ( You can buy the plastic base which fit the poles in our store. ) The price is only for the PVC pole and connection pipes ( every 3pcs poles will also send 2pcs connection pipes free charge， every 4pcs poles will also send 3pcs connection pipes free charge ).