Mini Stress Ball Set: You receive 40 mini Earth stress balls in 2 sizes, 20 of which are approximately 3 inches and 20 of which are approximately 2.5 inches, plenty of balls for everyday play and decoration; they are small and and easy to hold in one hand Fun ball toy: The World Stress Ball is easy to hold and play with, helping to relieve stress during work or school, relax and bring good mood during ; it also improves blood circulation in the hands, making you feel more energetic and lively Reliable and soft: The small sphere stress ball is made of foam material, which is soft and and comfortable to touch; it helps to exercise the fingers and relieve stress, and is suitable for most people. Versatile: Earth stress balls are versatile and can be used as inspirational gifts for family and friends, decorations, stress relieving toys, teaching supplies and more to meet your every need Beautifully printed: Earth stress foam balls with countries and regions, bright colours and clear printing make them an ideal teaching aid to help students learn geography and enrich classroom activities. Material: Polyurethane colour: blue Package Contents: 20 x 7.6cm Earth Squeeze Balls 20 x 6.3cm Earth Squeeze Balls Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.