150 pcs Large 3.1" Crush-Proof non-PVC Phthalate Free Plastic Ball Pit Balls - Air-Filled in 5 Colors - Guaranteed Crush-Proof Crush-Proof - Perfect for Home use. At 9 grams each, compared with others' 4~5 grams. Main reason why our balls will withstand over 150 lbs of direct weight. Squeeze it, sit or step on one and test it yourself. These balls are perfect for use in a family of kids from 1 to 16 years of age. For Business Use, please check our Truly Commercial Grade Balls by Google search " My Balls & Bouncer Commercial Balls " or check Amazon ASIN# B00673VSDC ( NOT designed for or intended for pets or animal use ) Size Does Matter - Yes, matters to your wallet. At a Jumbo 3'' diameter, these balls were 2.3X the size by volume when compared with our competitors' 60mm/6.0cm/2.3" balls(refer to photo). That meant you would need less count of balls to fill the same area. Average cost to fill a cubic foot= 68 Jumbo 3" Balls about $14.00. Quantity purchase discount will further save you money. This pack of 150 Jumbo 3" balls will be a perfect amount for a Graco Pack n Play, instead of 3~400 of their 2.3" balls Safety - Built with Phthalate Free; BPA Free; Lead Free Colors; non-PVC; non-Toxic & 100% non-Recycled Virgin PE Plastic Material, plus at an over-sized Jumbo 3" diameter, these balls had complied & met all existing US Toys Safety Standards and Small Parts Regulations. We avoided using any un-necessary chemical additives such as UV-inhibitor, color-seal additive, and even the so called " Germ blocker " as we believed one less chemical additive is one better for our younger next generation Quality - Designed in the US and Made in China. Using a unique 2-stage manufacturing process to ensure consistency in quality; thickness; smooth surface & seam. 5 Attractive Bright Colors: Red; Yellow; Blue: Green and Purple. Our " My Balls '' brand of balls were made with the highest quality 100% non-recycled plastic material. Each individual ball was molded with the My Balls Logo and batch-code for quality & warranty tracking purposes. We proudly put our name on each and every single balls. Looking for larger quantity? Save money by ordering the larger Pack of Balls. Please search and order from our Amazon Listings : Pack of 300 = ASIN# B0072VZLHM ; Pack of 500 = ASIN# B00AN3Z73E ; or simply search on Amazon for '' My Balls by CMS " Brand of Balls. Balls were shipped by volume (referred as Dim weight) and not by actual weight. For warranty & other product details, please refer to the manufacturer's website @ www.cmsworldwidesales.com or contact any of our authorized dealers.