Super Permanent Magnet: Lots of magnet particles built in the ABS shell & No contact with the air or moisture outside and therefore never abrade. Easily and firmly click together with a pleasant sound and not easy to fall apart. Our magnet toys can even be easily attached to any magnetic object. Safety Comes First: Fine polishing and manufacturing process contribute to smooth edges and surfaces without fading or abrasion, which brings simply carefree and endless fun. Ingenious size of About 1 Inch large blocks, never worry that kids may put them in mouth or even swallow it. Kit Includes: 35pcs 1-Inch building blocks in total with a illustrated user manual and a portable storage bag. Perfect carnival new years birthday valentines day gifts and educational toys for 3 4 5 6 7 8 year old boys girls highly recommended by educational expert for their intellectual development. Take more kits for more building possibilities!