Plastic two piece spherical shells and plastic canisters W/ Lid. 4" and up Available W/ 1/8" and 1/4" time fuse hole. ATTN: SOME PAPER SHELLS MAY OR MAY NOT HAVE HOLES ON ONE SIDE. ALSO MAY COME WITH HOLES IN BOTH HALVES THAT CAN EASILY BE COVERED UP. YOU MAY NEED TO USE 1/4" DRILL OR PUNCH. PLASTIC SHELLS MAY COME IN BLACK AND OR WHITE.