For Most Portable Generators Between Three And Five Thousand Watts, The Nexcover ??Generator Cover Dimension?: The portable universal generator cover measures 26 (L) x 20(W)x 20 (H)inch. We have 3 sizes available and they can be used in storage. ??Waterproof Material?: This outdoor generator cover is made of 600D durable polyester fabric with an added water-resistant laminated undercoating. The fabric is rip resistant, U.V resistant and waterproof, keep your generator dry clean in all weathers. ??Wind Resistant?: Ingenious design of the velcro, bottom strap and elastic hem cord can make the cover stay on your generator especially during high winds and harsh weathers. ? ?Secure Generator?: This cover protects your generator against rain, sun, snow, dust, and scratch. Two stacks of fabric at one side make the cover weather resistant, but ventilated. ??100% Money-Back Guarantee?: Your satisfaction is TOP important. If you're not fully pleased with NEXCOVER generator cover, simply return them to us for a no-hassle refund or replacement.