Soft Bi-Level Flow-Thru Brush – 0483 Ideal for fiberglass surfaces, windows, siding, awnings, boat covers and gutters Attaches to Mr. LongArm water-fed extension poles, extension poles and utility handles Dual cleaning surfaces for hard-to-reach areas Lightweight block reduces stress More 100% polystyrene filaments for long life All chemical resistant materials Made in the USA Stiff Bi-Level Flow-Thru Brush – 0488 Ideal for RV and mobile home rubber roofs, tires, wheel wells, mats, masonry, brick, concrete, stucco and wood surfaces Attaches to Mr. LongArm water-fed extension poles, extension poles and utility handles Dual cleaning surfaces for hard-to-reach areas More 100% polypropylene filaments for long life Chemical resistant materials Made in the USA