Cord Safety legislation means that most roller blinds are now manufactured with easy break chain connectors, designed to pop open under a reasonable weight. This leads to people mistakenly believing that they have snapped their chains, when in fact it is easily fixed. 

Simply place the last ball of each end of the chain back into the larger holes on each side of the connector. Your chain is now fixed!To avoid this happening always try to grip the chain above the section of chain which contains the two safety connectors. 

This ensures that any pressure is not exerted onto the connectors and will prevent them becoming unfastened.