Nkọwapụta:
1. Elu okokụre site na eserese.
2.Copper ihe n'ime
3.High mma ọlaọcha kọntaktị
4.Springboard nwere ike ịbụ bi-metal inlayer
5.PC ihe maka mkpuchi, metal etiti
6.N'ihi na plastic etiti, ọ nwere ike e mere dị ka kwa gị echiche otu.
7.N'ihi na eserese agba, ọ nwere ike ịbụ acha anụnụ anụnụ, gold, nwa, isi awọ.
