Our Bright and Colorful Hard Acrylic Birdie Ring Tubes are 3 1/2" in diameter x 2" wide x 1/16" thick. These Acrylic Ring Tubes will be a wonderful addition to your bird toy and have so many uses. They are wide enough to drill through them if you want to.  Mix & match them with other toy parts and your bird will have hours of fun with their new toy. Colors may vary.