120 pcs Square Tube Insert:100 pcs 20*20mm Square Tube Insert & 20 pcs 25*25*20mm Square Tube InsertOffer a neat and safe finish to tube ends.Tube inserts can prevent dirt and dust ingress.Made of black plastic with ribs to secure.Product name:Square Tube InsertMaterial:PlasticColor:BlackNet Weight:183g + 71gBattery Included: NoTop Size:20 x 20mm / 0.8 inch x 0.8 inch (L*W)Mounting Size:19 x 19mm / 0.75inch x 0.75inch (L*W)Total Height:13mm / 0.5inchHole Size: 17 x 17mm/0.67inch x 0.67inch (L*W)Thread Size: 24 x 24mm/0.94inch x 0.94inch (L*W)Bottom Size: 19 x 19mm/0.75inch x 0.75inch (L*W)Total Size: 25 x 25 x 20mm/1inch x 1inch x 0.8inch (L*W*H)Package Content: 120 x Square Tube InsertOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.