iArmBands Universal Fit Arm Band for most full size MP3 players, iPods, and most Cell Phones (including Google Nexus One, HTC G1 Android, HTC Magic, Blackberry Pearl & Curve) For most full size MP3 players, iPods, and most Cell Phones including Google Nexus One, HTC G1 Android, HTC Magic, Blackberry Pearl & Curve Made of comfortable black neoprene (same material as wetsuits). Fits arms up to 20 inches. Great armband for small or large arms. Great for working out, biking, running, etc.