So we have at home 2 Kong Knots Frog and the two hold for over 7 months. All the other nodes / cables do not like my Collies because they do seem to hurt. They're not babies or little guys - but big wild dogs. But I have taught them well from the outset, that you can not tear anything and tear at Zerrspielen. , There are shredding with us cartons (good paper without plastic coating, since it also makes nothing when a few scraps are chewed and swallowed.) The two Knots are carried around affectionately and keep plenty of! Dogs should disassemble the toys principle those plastic parts in any case do not get. The Quietschteil in Knots is not annoying as many others because so attached that it is operated only from time to time (in the middle) and the cable ends do not come with the soft horn in contact. In my opinion (dog owners for 40 years), a very well thought-out and robust toy.
