Volvo Repair: 2004 S60 Trunk Struts, gas shocks, volvo dealer

Question
Both of my trunk struts have broken and I need to replace. Are these easy enough to replace or do you suggest I take it to the dealer? I would like to replace myself if not too difficult.

What would the name of this part be when looking? I cant seem to find it when searching volvo parts websites.

Thanks!

Answer
go to Volvo dealer buy  Volvo trunk shock from dealer only  they will ask if you have spoiler on trunk   get shocks with spoiler  they are better stronger   to install is easy just open you trunk you will see on left and right side black gas shocks you just pry them off with screwdriver  do one side at time  lube the new shock with grease were it snaps and just snap it back in place first buy the shocks and take look at it  it is easy to install