Staedtler 527-01 Cordless Rechargeable Eraser w/Recharging Stand, Charger Pack & 2 Eraser Strips Cordless rechargeable eraser weighs just 9 1/2 ounces and has a recharging stand, AC adapter and eraser strips. Just 9-1/2 oz.!. Ni-MH batteries recharge in desktop stand or connect eraser to adapter for continuous AC. Includes recharging stand, AC adapter and two 1/4" diameter eraser strips. Eraser strip refills sold separately.