I am a supervisor in customer service for Conair and I must tell you that I think your customer service is wonderful. My son was very excited that the marbles arrived so quickly. Kudos to you and your company on excellent customer service.
Size is as-packaged, or the diameter of loose marbles. ("D" is the diameter of round items other than marbles.)
Transparent cobalt blue base swirled with opaque dark orange and light blue in and on the marble. 25 glass marbles (one of them is a 1" shooter!) with colorful printed header card. Don't forget something to keep the marbles in!