Features: The squeeze stress relief balls are just the right size for hands to hold an entire galaxy right in their palm, and increase the agility of fingers, when you play with it. These Valentine's Day stress balls are reusable when you feel stress, and no matter how much you squeezes they will not break open or fade. Specifications: Material: paper, solid sponge, plastic Color: as shown in the figure Size: Valentine's Day paper cards: approx. 2.8 x 3.9 inch Stress balls: approx. 2.5 inch in diameter Transparent small plastic bags: approx. 5.5 x 5.5 inch Package includes: 36 x Valentine's Day galaxy paper cards 36 x Galaxy stress balls 50 x Transparent small plastic bags Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Small items, adult supervision is needed when it is played by people under 3 years old.