70th Birthday Plates. If you are trying to find 70th birthday supplies such as 70th birthday plates, look no further. These are Snack or Small Lunch Plates. Says 'Seventy' in Cursive Writing. Matches other Birthday Stripes partyware. Pkg. of 8. Don't forget that we sell matching napkins, large dinner sized plates and other 70th birthday decorations such as confetti, and centerpieces. Measures 7 x 7 x 1.