Have here 4 Antique Thayer Hub Cap Baby Buggy Carriage Stroller 9" Wheel Wood Metal Rubber. They are in good condition for their age(see pictures) showing some signs of use and age. These are a very unique wheel design. The main part is all wood then a piece of metal that the rubber is attached to. There is a little seperation of the rubber where it spices together as can be seen in the pictures. One of the hubs looks have some light cracks or maybe even been repaired. They measure approximately 9". The center metal Thayer hub caps are approximately 1 5/8". Will also include the 8 washers that were on either side of the wheels. The center hub has a depth of approximately 2 1/2". Tire is approximately 3/4" wide. The main wood wheel is approximately 1/2" thick. The inside of the hub is approximately 1 1/8" deep & 1 1/2" across. The outside part of the hub is approximately 7/8" deep and 2 7/8" across the widest part. Center hole is approximately 7/16".