29Pcs 2nd birthday decorations items for boys includes: 1 happy birthday banner, 24Pcs metallic balloons, 3pcs foil curtain and No. 2 foil balloon. Happy birthday banner is made of 300 gsm cardstock and has gold foil print on it. You require to assemble the banner before decoration. It will take 5-10 minutes. 3Pcs Foil curtain is 6Ft in length and 3ft in width. Please peel off from back to stick it to the wall. 24Pcs metallic balloons are 10″ in size and can be filled with helium or air. Metallic balloons can only float if filled with helium. No. 2Foil balloon. It can be filled with air or helium. It can float if filled with helium.