These 24 sterling silver 5.5 mm large hole block beads are the Greek alphabet. The hole in the bead measures about 3.5 mm in diameter. You can save about 15% by buying the entire 24 piece set or you can purchase the Greek alphabet blocks seperately. Specifically they are Gamma, Delta, Theta, Lamda, Xi, Pi, Sigma, Phi, Psi, and Omega. The blocks beads that match our alphabet ie. A(alpha), B(beta), E(epsilon), Z(zeta), H(eta), I(iota), K(kappa), M(mu), N(nu), O(omikron), P(rho), T(tau), Y(upsilon), and X(chi) are also for sale in my store seperately! THESE BEADS DO NOT FIT ON A PANDORA. YOU NEED TO BUY THE 7MM ONES IN A SEPARATE LISTING.