I have to agree there. Survival tins can be an exercise in how many items can be crammed into a tabacco tin. With that in mind most of the said items are miniture or of fewer quantity than actually needed. Also I agree with the mobile phone as a means of alerting rescue agencies. I carry a PLB in my kit. Every environment will need the contents of the tin to be adapted etc. My kit is layered and carried as required.I have had the chance to study a lot of survival kits from military ejection seat contents to liferaft kits. Personally I'm not a fan of miniture items. A recent study concluded that the average time to rescue from notification is 48 hours. With that in mind my survival kit contents concentrates on shelter fire and signalling for rescue. Pack your own kit and practice with it.