This SV503 102ED telescope bundle set includes 102ed f/7 refractor OTA, SV193 focal reducer, SV211 handle bar(screws and mout screws inside) and SV188P diagonal 1.25 inch. It is worth mentioning that, since the 503 comes with 1.25-inch and 2-inch adapter rings, it can easily connect to any 1.25- or 2-inch zenith mirror, barlow lenses, eyepieces or other optical components without purchasing additional adapter separately.