Taya TB50 Bike Chain 5 6 7 Speed 

Compatible with Shimano Altus, Shimano A050 and Shimano Tourney

Index 5,6 and 7 Speed HG/UG

1/2" x 3/32" x 116 Links

Innovative Sigma Connector Included No Tool Required 
A Chain link extractor will be needed to remove your old chain if not fitted with a SIGMA connector. 
You may also need to use it to shorten your new TAYA chain to fit your bicycle. 
However, you can assemble your chain with a SIGMA connector without any tool required. Simply follow the instructions printed inside the box.