They have to have already been fairly difficult dogs as I haven't noticed a Doggy wipe out just one of such. But to those who have defied the extremely hard, I like to recommend the aptly named Kong Extreme. Disclaimer: This Site includes affiliate and/or referral hyperlinks which might or https://trentonnxfnv.laowaiblog.com/35317710/dog-toys-rubber-things-to-know-before-you-buy