Young children build handwriting and letter formation skills every time they do the fun activities in the Skill Builders! Writing Activity Set. The 38 pieces in this set help children ages 5 and up build handwriting and letter formation skills with the 21 mini letter construction pieces, and the write-and-wipe Learn to Write book. The three prongs on the Tri-Grip Tongs have indents that guide little fingers into the pincer grip and tripod grasp they need to develop in order to hold a pencil to write.