On Sun, 21 Jul 2019 09:56:06 -0400, Gary wrote:

wrote:

Need to cut an 1.5" X into 96 tennis balls. (To attach to classroom
chair legs, if you must know ;-)

Why not just buy those sticky felt pads for the chair legs?
Available at any hardware store in various sizes. Using half
tennis balls sounds a bit silly to me. Never seen that done in
any classroom or house with hardwood floors.
because the felt pads don't stay on.