Light duty use only. Foam is very sensitive to abrasive surfaces. These foam elbows can leave marks on walls if used when wall and / or elbows are wet. For 100% non-marking, heavy duty elbows, please purchase the ST-ORS-3XL, Deluxe Standoff model.
PLEASE NOTE: Foam Elbows are fragile and Not Covered by any warranties. This material is for occasional use, preferably on smooth surfaces, and are easily susceptible to wear and tear, depending on how they are used and the surfaces upon which they are used. For a more durable, longer-lasting elbow material, we recommend the Silicone style standoffs or the Silicone style replacement elbows.