The Sandbag for U tunnel is designed for the tunnel when it is curved.
Made of high quality fabric and resistant seams. Its triangular shape goes round the tunnel in a very effective way to keep the tunnel stable even with big dogs.
Velcro-adjustable. It is detachable in 3 parts for easier carrying, and allows maximum adjust.
Can hold up to 20 kg in each side.
It´s advised to fill them up with gravel instead of sand.