Sometimes BIGGER is better and the EZ Reach™ 4X and 8X sponge samplers make it easier to collect environmental samples from larger surface areas, like tanks, walls and ceilings. The ability to test a larger area, makes them the perfect tool for investigative sampling. These XL sponges include all the features of a standard EZ Reach sponge sampler including a durable polyurethane sponge, a bendable handle for better surface contact, and the unique twist-off action to easily separate the sponge from the handle.