Scratching synchronous and efficient window cleaning upgrade extended window cleaner The design is and labor-saving, and the dust and water stains can be solved again. Are you still plagued by window cleaning? High-rise window cleaning is difficult, but window cleaning is a luxury? It's too dangerous to clean high-rise windows. It's not only laborious, but also time-consuming. It's hard to remove stains repeatedly. The new elongated design is easy to hold, more labor-saving, more time-saving, no fear of dead ends, easy and convenient, enhanced suction, easy to master, thin and thick, all-inclusive and intimate, anti-pinch. Double-sided cleaning device with multiple functions is suitable for glass thicknesses/single-layer/double-layer/triple-layer insulating glass is suitable for glass thicknesses/single-layer/double-layer/triple-layer insulating glass to cover household glass. Note: Different colors are suitable for glass with different thicknesses. Long 3-8MM blue size: 60 x 250 x 85mm Material: Plastic colour: Blue Package Contents: 1 x 1 x 2m safety rope 2 x cotton 4 x buckle 2 x rubber strip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.