Amazon [amazon.com] has 6-Piece Expo Low Odor Dry Erase Chisel Tip Marker Set w/ Eraser & Cleaning Spray for $5.31 - 5% when you check out via Subscribe & Save = $5.04. Shipping is free w/ Prime or on $35+.

Includes: Red, Blue, Green and Black dry erase markers, a 2 oz bottle of Expo white board cleaning spray and an Expo eraser