1 inch diameter caps for chair feet, so that they don't dig into the ground. Works best when printed in a flexible filament such as TPU Onshape source files can be found at: https://cad.onshape.com/documents/95ed5524fe6c4eefee0cdcbc/w/df3a58df6ef35810f1e568a7/e/56c1f9540a2ecd8f81d94cc7