Poly 4′ Rollback Glider Poly 4′ Rollback Glider – $599.00 Amish Poly 4′ Rollback Glider Poly Lumber Many colors available Includes All Stainless Steel Hardware! Bracing is made of aluminum to prevent corrosion and rust. Item #RBG4800 $599.00 Choose From Any Of These Colors – Either One Solid Color or Two Tone – All At The Same Cost!