So .... any of the mule for the rubber .... take NEN scrunchy ago ;-) That with the battery, the okaaaaaay .... is echt untypisch- but 2 pcs at Hagebaumarkt for 10, -. Is okay and since one needs only at night the light .... so what? I hab`s now are almost 4 years, indestructible with scrunchy -D and I buy me absolutely no other, the part is me so often fell off the bike down =! Mule ned because of the stupid rubber there, buying a 50 cent for somewhere and you have in my opinion the best rear light! "I've finished"