AE Zimmer Onitek Universal Bi Fold Door Roller BD3 / BD4 Suitable For 95% Of All Bi Fold Door (1 Set)门辊

Onitek. Product Name: i Bifold Door Roller N-Pro C N-Pro. Brand Name: ONITEK. Type: BiFold Door Roller Replacement Part. Features: Easy to install. Best Quality. Long term usage. Makes opening and closing effortless. Reliable and durable. Smooth without noise. Durable, stable, strong. Anti-rust roller. Upper Bracket. Bottom Bracket. Upper Roller. Bottom Roller. Upper Stopper. Bottom Stopper. Suitable for Bi-fold Door. Youtube: url]: 1set-Bifold roller parts. Product Name: i Bifold Door Roller BD 3/4. Brand Name: ONITEK. Type: BiFold Door Roller Replacement Part. Features: Easy to install. Best Quality. Smooth without noise. Durable, stable, strong. Upper roller Blue-5MM Thick). Bottom roller Red-8MM Thick). Upper/Bottom No Colour). Stopper. Suitable for 95 of all Bi-Fold Door. Youtube: url]: Firstly, push the roller. Second, move the door. Third, take out the old roller. Fourth, attack the new roller. Point in the right direction). Fifth, attack the stopper. Sixth, attack the door. Lik