Each bottle sits into two slots, front and back, so it cannot roll or tip out when the rack is knocked - that is how 12 bottles stay put on a 23.5 in shelf with no frame around them. The whole rack is 100% natural bamboo and weighs 3.5 lbs. Two tiers keep the bottles clear of one another. It measures 23.5 x 9.5 x 10 in, low enough to sit on a countertop beneath wall cabinets. The natural finish suits a kitchen with wooden worktops; brown is the alternative.