A waterproof cover adapted to enclose a plug assembly of an electrical lead, said cover including: a first hollow cover body and a second hollow cover body (17, 18), the first and second bodies (17, 18) being pivotally attached together for angular relative movement between an open position and a closed position, the bodies (17, 18) in the closed position providing a chamber to receive the plug assembly, the bodies (17, 18) defining a longitudinal axis and having longitudinally spaced apart oppositely located end walls; each said end wall having a recess, the recesses of adjacent end walls defining an aperture through which an electrical lead (12, 14) is to extend to an associated male or female plug portions (13, 15) to be located within said chamber in use; said cover including: only one single unitary seal (25, 26) operatively associated with said body portions (17, 18) to surround said chamber along a rim of said first or second body (17, 18) so that in the closed position the body portions (17, 18) seal said chamber to provide a water proof seal to said cover, wherein the seal is adapted to frictionally engage the leads (12, 14) located within said apertures to inhibit separation of the plug portions (13, 15) located in said chamber in use, characterized in that: - the seal has seal ends including an upper portion and a lower portion which connect together to seal about the lead portions (12, 14) at the end walls and said upper portion has a flap with a hole to be received by a corresponding protrusion on the lower portion. a first hollow cover body and a second hollow cover body (17, 18), the first and second bodies (17, 18) being pivotally attached together for angular relative movement between an open position and a closed position, the bodies (17, 18) in the closed position providing a chamber to receive the plug assembly, the bodies (17, 18) defining a longitudinal axis and having longitudinally spaced apart oppositely located end walls; each said end wall having a recess, the recesses of adjacent end walls defining an aperture through which an electrical lead (12, 14) is to extend to an associated male or female plug portions (13, 15) to be located within said chamber in use; said cover including: only one single unitary seal (25, 26) operatively associated with said body portions (17, 18) to surround said chamber along a rim of said first or second body (17, 18) so that in the closed position the body portions (17, 18) seal said chamber to provide a water proof seal to said cover, wherein the seal is adapted to frictionally engage the leads (12, 14) located within said apertures to inhibit separation of the plug portions (13, 15) located in said chamber in use, characterized in that: - the seal has seal ends including an upper portion and a lower portion which connect together to seal about the lead portions (12, 14) at the end walls and said upper portion has a flap with a hole to be received by a corresponding protrusion on the lower portion. only one single unitary seal (25, 26) operatively associated with said body portions (17, 18) to surround said chamber along a rim of said first or second body (17, 18) so that in the closed position the body portions (17, 18) seal said chamber to provide a water proof seal to said cover, wherein the seal is adapted to frictionally engage the leads (12, 14) located within said apertures to inhibit separation of the plug portions (13, 15) located in said chamber in use, characterized in that: - the seal has seal ends including an upper portion and a lower portion which connect together to seal about the lead portions (12, 14) at the end walls and said upper portion has a flap with a hole to be received by a corresponding protrusion on the lower portion. - the seal has seal ends including an upper portion and a lower portion which connect together to seal about the lead portions (12, 14) at the end walls and said upper portion has a flap with a hole to be received by a corresponding protrusion on the lower portion.