This square tube size converter is an essential tool for connecting tubes of different dimensions. The plastic material ensures durability and resistance to wear, while the hollow design facilitates easy installation. Ideal for use in construction, plumbing, and other structural applications, this adapter provides a secure and stable connection between square tubes, enhancing the overall integrity of the project. Features -Color:Black -Material:Plastic -Size:6.00X4.00X4.00cm/2.36X1.57X1.57in -Robust material: constructed from durable plastic, ensuring durability and reliable performance over time -Effortless installation: the square tube size adapter design allows for effortless and precise installation and connection -Adaptable use: the hollow sleeve and liner sleeve design provide versatility for different applications and needs -Enhanced tube life: offers excellent protection and tool for tubes, enhancing their durability and extending their lifespan -Versatile applications: great for various equipment and devices, extensively used in construction, industrial, and other areas Package list: 6pcs x square tube reducing sleeves