Whoever does not want to do without their long fingernails, but often uses a thimble when sewing, will find Prym’s plum blue adjustable thimble just perfect. Because the fingernail will be free at its opening on the upper side. The special dot-shaped notches on the top and the grooved notches on the side allow for very precise needle guidance and prevent the annoying slipping of the needle. This thimble is also suitable for people with allergies, sensitive to the usual metal thimbles, because it is completely made of plastic. By shortly heating in boiling water, it can be perfectly adjusted to any size.