This is a Free Flow Tube sold as a replacement for a Tube Bed.  It will fit a standard QN or KG size tube bed.  With all tubes it is best to fill them to the firmness you would like and add one tube tablet.  These are sold to us in bulk and currently are not wrapped but we do put them in a bag before shipping. The colors may vary.  Buy with confidence from the oldest Waterbed Store in Northern Colorado Country Waterbed Store.  We are upgrading this listing to FREE PRIORITY MAIL Shipping.