Piano Keytops with attached fronts. Full set of 52 solid white piano keytops. Enough keytops to cover all of the white keys on a standard 88 note piano. Quality keytops made in Germany. Keytops are .080" thick and heads are 50 mm long (1.97"). Can be fitted to most pianos by filing for a perfect fit. Each keytop is an individual piece for ease of installation.