This is a Magnetic Ball Marker with a clip for attachment, available in blue, green, black, or red. It measures approximately 1" W x 4" H, with a ½" diameter imprint area on the ball marker and an optional ½" W x ½" H area on the backside. The imprint colors are laser engraved tone-on-tone, with an optional backside that laser engraves white. The product is packaged in a poly bag and contains small magnets, so it should be kept out of reach of children.